<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<script>
function outputNumbers(count){
	(function(){
		for(var i=0;i<count;i++){
			console.log(i);	//0-9
		};	
		console.log(i);//10
	})();
	console.log(i);//i is not defined
};
outputNumbers(10);//

(function(){
	
	var now=new Date();
	
	if(now.getMonth()==0 && now.getDate()==1){
		
		console.log('happy new year');	
	}	
	
})();//可以减少闭包占用内存的问题，没有指向匿名函数的引用，只要函数执行完毕，就可以立即销毁其作用域链了


</script>
</head>

<body>
	
</body>
</html>
 